There are countless dating rules for attracting those you desire but in the animal world, deception and even disguise is used to lure in mating partners.
New research from the University of Otago has found that some sneaky males actually pretend to be females, to avoid aggression from big rivals, and to move in on the object of their affection.
Lead author Erica Todd has likened the cunning movements of her subject species, the bluehead wrasse, to a soap opera.